The Haean basin is a unique geographical feature formed by differential erosion and it borders the military demarcation line. Recently the basin has become an interest of civilians due to security tour, highland vegetables and wetland. After the civil war, the population decreased but it has increased since 2007. The annual mean air temperature in the basin has increased with a rate of +0.016oC/yr and the annual precipitation also has increased with a rate of +10.41 mm/yr. The precipitation occurring in June~August (wet season) occupied most of the total precipitation increase. In addition, recently the number of groundwater wells and its use have gradually increased and most of them are for agriculture including cultivation of rice and highland vegetables. If the air temperature further increases in the future according to the climate change scenarios, the highland vegetables cultivation will be difficult. Furthermore, if the rainstorm in the summer will be enforced, the groundwater recharge and water management will be aggravated. Therefore, an evaluation for sustainable groundwater development in the basin and a reform of the current agriculture (change of cultivating crops) depending on much water are essentially required.
Sustainability and resilience are important properties of transportation infrastructure. Considering the connection and interaction between them, this paper provides an integrated method for quantitative assessment on resilience and sustainability of transportation infrastructure. In view of the complex, multidisciplinary nature of the problem, this paper breaks the process into three logical modules that can be studied and resolved in a rigorous and consistent manner. By employing time-dependent reliability and the time-dependent probability of exceeding a damage state as parameters, a robust multi-objective maintenance decision-making method simultaneously considering effects of probable extreme events and natural deterioration is provided. By introducing the 3-D resilience model and six-parameter sinusoidal-based recovery model in resilience theory, the result of risk assessment which involves much inherent uncertainty turns to be more reasonable. Finally, advancing quantification methods of sustainability and resilience are proposed to accomplish the comprehensive assessment with a case study. The method can be used to guide informed decision making in transportation asset management, promote the construction of resilient transportation infrastructure, and accelerate the sustainable development of the city.
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